1 Subtract the total from 100%: 100-7.65 = 92.35. 2  Convert that number to a percentage by moving the decimal two positions to the left: 0.9235. 3  Add $100 from FIT to the net: $100 + $200 = $300. 4  Divide the new net amount by the amount in step 3: 300 / .9235 = 324.85. 5  The gross amount to be used is $324.85.
The cause of muscle cramps isn't always known. Muscle cramps may be brought on by many conditions or activities, such as: 1  Exercising, injury, or overuse of muscles. 2  Pregnancy. 3  Cramps may occur because of decreased amounts of minerals, such as calcium and magnesium, especially in the later months of pregnancy.
The second most common cause is dehydration. Cramps can also be caused by electrolyte and metabolic disorders. Diuretic drugs can commonly cause cramping through dehydration, sodium or potassium depletion. Parathyroid disease causes high or low calcium levels and is associated with cramping, as is thyroid dysfunction. Parathyroid and thyroid diseases are perhaps a more common cause of cramping in the hands and arms compared with other causes of cramping. The evaluation of cramping will commonly involve a drug history and blood studies checking sodium, potassium, magnesium and calcium levels as well as thyroid function tests.